Which professions best characterize the jobs held by people in the middle class at the turn of the twentieth century? clerks, teachers, and doctors factory, mill, and assembly-line workers union leaders and laborers big business owners and industry leaders

The correct answer is B: factory, mill, and assembly-line workers.

i believe it d) heterogeneous

john smith was the first englishman to sail around the world. francis bacon served as attorney general and lord chancellor of england. he took up aristotelian ideas, arguing for an empirical, inductive approach, known as the scientific method, which is the foundation of modern scientific inquiry.